Diva Mariah Carey lived up to her billing here in London last night. The mother of newborn twins (Monroe and Moroccan Cannon) was snapped partying it up with Joan Collins (pictured) among others at a private function here in the nation’s capital.

Having given birth only a few months ago, the 41 year old looked undeniably stunning. We can only hope she kept it light on the drinks, for when she ditched the bottle during her pregnancy, her voice sounded better than it had in years. Just saying…

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